Rolls for rolling i-beams into plates



(N0 Model.)

W. H. GRAHAM.

ROLL FOR ROLLING I-BEAMS INTO PLATES.

Patented May 11, 1886.

MEL/2'02 WLZQMW 74 F/MAW -Mzvv55555 w. PFIERS, Phntn-Lithqgrapher, Washmglon, 0. Q

UNITED STATES PATENT OFFICE.

XVILLIAM H. GRAHAM, OF PITTSBURG, ASSIGNOR OF T\YO-THIRDS TO HAY ALKER, JR., TRUSTEE, OF ALLEGHENY, AND A. O. MILLIKEN, OF MILL- YALE BOROUGH, PENNSYLVANIA.

ROLLS FOR ROLLING I-BEAMS INTO PLATES.

SPECIFICATION'forming part of Letters Patent No. 341,570, dated May 11, 1886.

Application filed January 18, 1886. Serial No. 188.840. (No model.)

To all whom it may concern: the intermediate opening, 0. In this in- Be it known that I, WILLIAM H. GRAHAM, stance. the passes a and b overlap each other,

of Pittsburg, in the county of Allegheny and the initial groove 6 being arranged inside of State of Pennsylvania, have invented a new the initial groove (4 of the pass a. The pur- 5 and useful Improvement in Rolls for Rolling pose of this arrangement is to save cost in the I-Beams Down into Plates; and I do hereby construction of the rolls, as a portion of the declare the following to be a full, clear, and room occupied by the first pass, a, is utilized exact description thereof. in forming the second pass, b. The third and The object of my invention is to roll down fourth passes, oand e, overlap in like manner,

10 the butts and ends of steel I-beams into flat while-the fifth pass, t', is separate.

plates suitable for use as nailplates and for WVhere the passes are entirely independent, other purposes. These butts and ends are as in the case withe and i,theintermediate conformed in considerable quantities by sawing necting opening between the passes may, if off the defective ends of the beams, and being desired, be closed ,by making the intermediate 1 large and heavy efforts are made to utilize collars, p, of suificient size for that purpose.

them, in order to reduce theirloss as scrap and I prefer, however, to leave them open, besave the necessity of remelting them. They cause there is a certain amount of lateral exhave heretofore usually been slit longituditension of the plate obtained by the free lat- 7o nally to separate the web and flanges, thereeral spread of the metal in the connecting 2 by forming flat bars which were easily rolled opening 0.

to shape. The necessity for cutting off the As before stated, the blanks shown in Figs.

flanges arose from the fact that they would A: to 7 indicate the shape of the beam communot weld if rolled down on the web, and connica-ted thereto by the respective passes a, b,

sequently produced a seam or defective place 0, e, and t. The flange-reducing grooves bein the resultant product, which rendered it ing made with flat bot-toms and flaring sides,

worthless for most, purposes. cause the flanges 2 2 and 4 4 of the beam on to My invention consists of an improved 0011- be gradually reduced until they approximate struction of rolls, whereby I am enabled to to the thickness of the web 3 without folding roll down such beams into flat plates without or plicating them upon the web, so that no 0 plication or seam. seam or defect is produced by the reduction.

To enable others skilled in the artto make Separated from the grooved pair of rolls by and use my invention, I will now describe it collars f is aplain or finishing pass, h, through by reference to the accompanying drawings, which the beam, when in the condition shown in which in Fig. 7, is passed to bring it to a plate, a,

35 Figure 1 is an elevation of a pair of rolls Fig. 8, of uniform diameter, the thickness of embodying my invention. Fig. 2 is a crosssaid plate a being practically equal to the section of an I-beam. Figs. 3, 4, 5, 6, and 7 thickness of the flange? of the blank m. The are cross-sections of the same beam after passconnectingopening 0, which extends between ing through the grooved passes of the rolls. the grooves of the various passes, permits the 40 Fig. 8 is a view of the finished plate. free passage of the web 3 without reducing or Like symbols of referenceindicate like parts 5 drawing the same, so that the reducing effect in each. of the rolls is exerted upon the flanges alone The rolls X Y are provided with a series of until they are brought down to a uniform reducing-grooves having flat bottom and flargage with the web 3. Of course the resulti 5 ing sides, which grooves are grouped so as to ant plate a may be rolled out to a smaller gage constitute several different passes. Thus the by subsequent operation, if desired.

' first pass, a, is formedof the reducinggrooves In connection with each pass a, b, c, and e,

a (15, connected by an intermediate opening, I show an additional groove, (6 b 0 and e 0, which opening is of suflicient thickness to in each roll, said additional grooves being con- 0 allow the free passage of the web 3 of the L nected by the opening owith the other grooves beam. The pass bis in like manner composed of the same size, the purpose of which is to offlange-reducing grooves 12 12"", also connected enable me to reduce an I-beam of less width than can be done in the grooves 11 and a". \Vhen reducing such a beam, the grooves a will be coupled with the grooves a. The I- beam in (shown in Fig. 2) is of the proper size to be reduced by the grooves a and a, the grooves a and a? being adapted for a narrower beam. In the pass 2', four similar grooves are shown. Y

It is apparent that the rolls may be adapted in this way without unnecessary loss of space to use in the reduction of several different widths of beams.

I do not limit myself to any given number of passes in a single pair of rolls, although I prefer the construction illustrated in the drawings, because it is apparent that each pass may be arranged in a separate pair of rolls.

My invention is in practical operation and proves to be of great practical and economic merit. It enables me to utilize the whole mass ofinetal in the I-beam without shearing, wh ieh results in the production of a larger plate without increasing the cost, and one which, by reason of its increased size, is adapted to more extended uses.

What I claim as my in ention, and desire to srcure by Letters Patent, is

l. A pair of rolls for rolling Ebeanis down into plates, eaeh provided with a series of reducing-grooves having flat bottoms and flaring sides arranged opposite each other, with an intermediate openin g which permits the free passage of the web of the beam, said grooves being grouped in pairs, so that each two pairs constitute a separate pass, and the grooves of each pass being deeper than those of the succeeding pass, while the intermediate opening remains the same throughout all the passes, substantially as and for the purposes described.

2. In apair ofrolls for rolling I-beams down into plates, in which the pass is composed of a pair of flange-reducing grooves having fiat bottoms and flaring sides in each roll connected by an intermediate opening,which permits the free passage of the web of the beam, the combination of the first pair of the-opposite grooves with a third pair of like opposite grooves arranged beyond the second pair and connected with the first pair by an interme diate web-passage, substantially as and for the purposes described.

3. A. pair of rolls for rolling I-beams down into plates provided with several passes, each composed of flange-reducing grooves having flat bottoms and daring sides connected by an intermediate opening for the free passage of the web, the passes being of gradually-diminishing depth, in combination with a plain finishing-pass arranged at the end of the rolls, substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 8th day of January, A. D. 1886.

ILL I AM H. GRAHAM.

it-messes:

\V. B. CORWIN, THOMAS B. KERR. 

